/*
 * this script is written in windows fetch, should be used in html as following:
 *
        <script src="https://totemlife.cn/apps/js/prevent-copy.js"></script>
 *
 */
document.addEventListener('mousedown', function(e) {
    if (e.target.isContentEditable) {
        return; // 允许编辑区域的文本被选中
    }
    e.preventDefault();
});
